.custom-margin {
    margin-bottom: 40px;

    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60%;
}

/* 自定义样式，为第二个 input 添加右侧外边距 */
.btn-group input[type="radio"]:nth-of-type(2) {
    margin-right: 1rem;
}


.switch_prompt {
    display: flex;
    justify-content: flex-end;
    align-items: center;
}


.start_prompt {

    width: 100%;
    text-align: left;
}


#mySwitch {
    width: 30px;
    height: 20px;
    margin: 0 auto;
}


.navbar-nav .nav-item.active .nav-link {
    color: black; /* 设置激活状态文字颜色为黑色 */
    font-size: 1.5em; /* 增大字体大小，可按需调整 */
}